Modular sensor input block



FIG. 1 is a top view of the modular sensor input block showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a left view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a right side view thereof; and,

FIG. 6 is a rear view thereof. 

The ornamental design for a modular sensor input block, as shown and described. 